Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With zero schema-description coverage, the description must carry the meaning, and it does by specifying that pending_id comes from board_pending. The schema provides the integer type and requiredness; the provenance is enough for an agent to choose the right identifier. It doesn't cover error cases for invalid or stale ids, but one parameter is well-served.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.